Cal. Evidence Code § 522 : California Evidence Code — Burden Of Proof; Burden Of Producing Evidence; Presumptions And Inferences — Burden Of Proof — Burden Of Proof On Specific Issues — Claim of insanity Date: 31 Aug 2016 TEXT PDF Current through the 2016 Legislative Session The party claiming that any person, including himself, is or was insane has the burden of proof on that issue. Ca. Evid. Code § 522